Liquid-fuel burner.



A. BWING.

LIQUID FUEL BURNER.

APPLICATION FILED OCE?, 1912. 1,108,728. Patented Aug. 25, 1914 i., ,Q -ww l a i 2,/

muren STATES ATENT GFFICE.

' LIQUID-FUEL BURNER.

Specification of Letters Patent.

Patented Aue". 25, 1914.

Application led October 7, 1812. Serial No. 724,382.

tive burner having means Within itself for n varying `the amount ot oil used without re- :uuring to change the pressure of the oil service or the burner parts.

proieinent to which attention is called in 2o the Yfollowing sgecilication which t'ulljyv de-' Scribes the invention, reference being made lo the drawings by Wlnch it is accompanied, in which:

Figure l is a longitudinal section through.

25 the burner. Fig. 2, a. cross section on the line A, and Fig. 3, an enlarged detail ol' the burner end. Fig. 4 is a detail sectional view et a portion of the nut showing where the.

thread if: mutilated to forni the chamber into which the i'luid passes.

The burner comprises an elongated tubular hedjY L) to one end ot' which is secured a head portion 2:3 having an oil service connection :1t-f and opposite to it a steam pipe at rl`he steam lis intended connection only.' to clear the burner in the event ot' it lic/eenling choked. ln the end of the head 3 s cured a packed gland 6 through which panes a stein 7 which reduced, as at S, here it passes through the gland, and at the outer end has a hand wheel 9 secured on il. @n the other end of the tubular body :i cap l() is screwed, Securing against the nl, of" the tube a nut member l5 to be deineil later. The cap l() has a small axial aperture ll which, on its inner side, is conically enlarged to its seat on the interposed nntlfi. and on the outer eide has a shallov.7 The nut member l5 is i e to receive the screw threaded end 16 et the stem. T, the eXtreme end of which stem il: ccnefl, is at l?. The nut 1? is chambered,

o the bottom ot' thc thread and ra- .nl apertures 2O deliver from the outside t1 s. the end ne nut to the elnzml'ief'cd rece which recesf, toward the delivery, ies tared to the burner under -pressure and is,'

ihere are other incidental features of im pei-ed to the inner diameter of the thread in tl'e nut. lt will he noted that the chambering ol thisl nut (loes not exceed the depth ot the thread7 so that when the screwed end 16 of the stein T is in the nut the oil must follow the threads ol" the screw toi-each the outlet.

The amount of oil which passes along the thread of the ecrew is subject to variation by moving the screwed end .lf3 or' the stem into, or withdaiving it Yfrom the tapered end of the bore 19 oi' the nut. ln such movement the conical end 1T on the stein penetrates the corresponding conical enlargement lS'of the inner side of the cap l0, limiting the space there as the delivery v into that space is restricted. Thus in use7 the oil delivered `at l passes through the radial apertures 20 and follows the threads of the screw in the nut and delivers into the conical enlargement of the cap, with a swirlinginovcnient, which movement is retained asit is delivered through the aperture ll and aids diti'usion of the oil spray as it leaves the aperture. The amount of oil passing through each burner may thus be readily varied to its 'special requirements without the necessity of altering the pres- .sure ot' the oil service, which alteration might not .he satist'awtory to other burners in the system. and this variation is eli'ected without otherwise altering the efficiency of the burner,

rlfhe rim ot the hand wheel 9 may be graduated and a fixed pointer 2l may be secured to the burner head 3 so that the position oi the end of the stein in the nut may be indicated.

Having now particularly described my in-4 vent-ion, l hereby declare that what l. claim as new and desire to be protected in by Letters liatent, is: I

A liquid fuel burner, comprising in comlination a tubular body having an oil receiving opening, a cap threaded to said body at one end. a nut secured between said cap and the end ot' said body and projecting into said body and spaced from the. Walls thereof, said nut. havingv a threaded bore one portion of which is mutilated to 'form a chamber intermediate the. ends of the nut., Said nut having radial apertures for affording communication between said chamber and 'the interior et Said body, and a valveV rod threaded into said nut and having a valve end. said cap having a valve Seat to coperate with said valve end, and having an aperture to permit passage of the fluid the threads in the bore of the said nut between the mutilated chamber and the inner 5 end of the nut. being designed to closely his the threads of said valve rod; whereby to effect a substantial closure of the inner end of said nut to cause the/oil to pass through the space between- Said nut and the Walls of said body and How through said radial aper- 10 tures into said bore. l Y In testimony whereof I have signed my name to this speefeaton in the presence of two subscribing Witnesses.

ALEXANDER EWlNG. Titnesses:

JOHN D. VATEm-IOUSE, C. J. SAVAGE. 

